Cant get hold of anyone when you have a problem

The first time I have attempted to sell anything on Gumtree, added my paypal account and then within hours had sham texts and emails, having already been shammed on ebay (which owns Gumtree) and my paypal account being hacked I immediately tried to take my paypal account off, couldn't do it couldn't contact anyone, keeps coming up error on the live chat and no other way of contacting anyone I had to delete my account after a couple of hours. We need to be able to contact people to be able to sort problems out especially if its not a standard problem. It seems to be a common problems with these large sites, nobody seems to care.